CVE-2020-36855

DCMTK dcmqrscp parseQuota stack-based overflow

MEDIUM
5.5
CVSS Score
Published: October 21, 2025 at 03:02 PM UTC
Updated: June 17, 2026 at 03:16 AM UTC
1 product affected across 1 vendorDCMTK

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

A security vulnerability has been detected in DCMTK up to 3.6.5. The affected element is the function parseQuota of the component dcmqrscp. The manipulation of the argument StorageQuota leads to stack-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. Upgrading to version 3.6.6 is sufficient to fix this issue. The identifier of the patch is 0fef9f02e. It is recommended to upgrade the affected component.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vendor states this is fixed in 3.6.6 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

SignaturePermissions RequiredVDB Entry
https://vuldb.com/?ctiid.329028
VDB EntryTechnical DescriptionThird Party Advisory
https://vuldb.com/?id.329028
Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.673137
ExploitThird Party Advisory
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://shimo.im/docs/rp3OMVMDPKtjn0km/read

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-119CWE-121

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